You should wait: As with any viral skin disease, contact with the "sore" can spread the virus ( in your case varicella zoster) to someone who never was exposed.
Answered 10/27/2018
5.5k views
Not now: Coming in contact with a Shingles rash/blister can infect someone who doesn’t have immunity to chickenpox. That person could develop chicken pox (not shingles).
Answered 10/27/2018
257 views
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